Clear all filters - programmatically

[Jon]

How I can programmatically clear all filters that have been manually set using the built in 'column' filters?
I want to add a 'CLEAR FILTERS' button.
thx again

[Vanya Pavlova]

Hello Jon,

 

You may clear RadGridView's FilterDescriptors through calling the Clear method.

All the best,
Vanya Pavlova
the Telerik team

[Jon]

What do I call clear on?

[Vanya Pavlova]

Hello Jon,

 
You need to attach to the button's click event and clear the FilterDescriptors collection, as shown below:

private void Button_Click(object sender, System.Windows.RoutedEventArgs e)
        {
            this.playersGrid.FilterDescriptors.Clear();
        }

Kind regards,
Vanya Pavlova
the Telerik team

[Jon]

THX

[Guy]

This is not a proper solution in my case. I want a button Clear All that clears filters on all columns, but if I clear the FilterDescriptors collection, the Filter PopUp do not reflect the changes.

1) Check a checkbox in the Filter PopUp to filter on checked element
2) Press Clear All button and do: this.playersGrid.FilterDescriptors.Clear();
3) Filter icon is still yellow (indicating we are still filtering) and if you click on the Filter icon, the element is still checked as if it was filtered. Note that this actually shows a false information to the user, because the Filter has been removed, but it is not reflected.

How can I do a Clear All on the filters that reflects inside of the Filter PopUps?

Thank You

[Arun]

In my case it is not working:

Code:
MyGrid.FilterDescriptors.Clear();
MyGrid.Rebind();

the filter icon is still there..

[Dimitrina]

Hello,

You should clear the filters like so:

this.radGridView.FilterDescriptors.SuspendNotifications();
foreach (Telerik.Windows.Controls.GridViewColumn column in this.radGridView.Columns)
{
    column.ClearFilters();
}
this.radGridView.FilterDescriptors.ResumeNotifications();

The filtering concept is described in details in the Basic Filtering topic.

Regards,
Didie
Telerik

 

 

[Arun]

Thanks it works ,
but in case of Custom Filtering Control inherited from " IFilteringControl " it still shows the filter icon..
i have a Dependency property:
 public static readonly DependencyProperty IsActiveProperty =
            DependencyProperty.Register("IsActive", typeof(bool), typeof(FilterId), new PropertyMetadata(false));
public bool IsActive
        {
            get { return (bool)GetValue(IsActiveProperty); }
            set { SetValue(IsActiveProperty, value); }
        }
but i cant update this from other usercontrols.

[John]

Just in case anyone would find this useful:

 

public void Prepare(Telerik.Windows.Controls.GridViewColumn columnToPrepare)        {            _column = columnToPrepare;            CollectionChangedEventManager.AddHandler(_column.DataControl.FilterDescriptors, FilterDescriptors_CollectionChanged);            IFilterDescriptor f = _column.DataControl.FilterDescriptors.OfType<FilterDescriptor>().FirstOrDefault(p => p.Member == "Readiness");            if (f == null)                f = _column.DataControl.FilterDescriptors.OfType<CompositeFilterDescriptor>().FirstOrDefault(p => p.FilterDescriptors.OfType<FilterDescriptor>().Any(v => v.Member == "Readiness"));            var l = new List<FilterDescriptor>();            if (f is CompositeFilterDescriptor)            {                l.AddRange((f as CompositeFilterDescriptor).FilterDescriptors.Cast<FilterDescriptor>());            }            else if (f is FilterDescriptor)                l.Add((f as FilterDescriptor));            IsActive = f != null;            foreach (var cb in this.FindVisualChild<Grid>().FindVisualChildren<CheckBox>())            {                if (f == null)                    cb.IsChecked = false;                else                {                    cb.IsChecked = (cb == production && l.Any(fd => (ReadinessState)fd.Value == ReadinessState.PRODUCTION))                        || (cb == development && l.Any(fd => (ReadinessState)fd.Value == ReadinessState.DEVELOPMENT));                }            }        }

 

private void FilterDescriptors_CollectionChanged(object sender, NotifyCollectionChangedEventArgs e)        {            var coll = sender as ObservableCollection<IFilterDescriptor>;            IFilterDescriptor f = coll.OfType<FilterDescriptor>().FirstOrDefault(p => p.Member == "Readiness");            if (f == null)                f = coll.OfType<CompositeFilterDescriptor>().FirstOrDefault(p => p.FilterDescriptors.OfType<FilterDescriptor>().Any(v => v.Member == "Readiness"));            CollectionChangedEventManager.AddHandler(coll, FilterDescriptors_CollectionChanged);            var l = new List<FilterDescriptor>();            if (f is CompositeFilterDescriptor)            {                l.AddRange((f as CompositeFilterDescriptor).FilterDescriptors.Cast<FilterDescriptor>());            }            else if (f is FilterDescriptor)                l.Add((f as FilterDescriptor));            IsActive = f != null;        }